Register Hereor login if you are already a member
Several causes might be there specially on Linux OS. Is the driver properly loaded? It is necessary to install the driver and its related dependencies on the same system. You can try this, o
pen terminal, and type as,
sudo gedit /etc/NetworkManager/NetworkManager.conf and press enter key.
It opens a file where you write as,
Save and exit. Now again type on terminal as, sudo service network-manager restart and press enter key.